Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 405, NWS Atlanta, GA

June 28, 2011Chattahoochee County, Marion County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 28, 2011, 2:42 PM EDT for Chattahoochee County, Marion County, Georgia. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 28, 2011, 2:42 PM EDT (18:42 UTC)
Expired: Jun 28, 2011, 3:04 PM EDT
In force: 22 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Chattahoochee County, GA, Marion County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.7 hours before the alert went out and 106 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2253 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 734 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

954 
WUUS52 KFFC 281842
SVRFFC
GAC053-197-281915-
/O.NEW.KFFC.SV.W.0405.110628T1842Z-110628T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
242 PM EDT TUE JUN 28 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN CHATTAHOOCHEE COUNTY IN WEST CENTRAL GEORGIA
  NORTHERN MARION COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 315 PM EDT

* AT 238 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED NEAR
  EELBECK/WEST FORT BENNING...MOVING SOUTHEAST AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  JUNIPER...MARION ESTATES...OAKLAND...ZELLOBEE AND BRANTLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

&&

LAT...LON 3241 8487 3242 8486 3241 8479 3243 8478
      3242 8477 3250 8473 3252 8471 3254 8464
      3249 8443 3228 8460
TIME...MOT...LOC 1842Z 300DEG 14KT 3245 8472

$$

1 follow-up statement

379 
WWUS52 KFFC 281904
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
304 PM EDT TUE JUN 28 2011

GAC053-197-281911-
/O.CAN.KFFC.SV.W.0405.000000T0000Z-110628T1915Z/
MARION GA-CHATTAHOOCHEE GA-
304 PM EDT TUE JUN 28 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHATTAHOOCHEE AND
NORTHERN MARION COUNTIES IS CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS WEAKENED AND IS NO LONGER 
EXPECTED TO PRODUCE SEVERE WEATHER. HOWEVER...HEAVY RAIN AND 
OCCASIONAL LIGHTNING CAN STILL BE EXPECTED IN THE AREA. 

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3241 8487 3242 8486 3241 8479 3243 8478
      3242 8477 3250 8473 3252 8471 3254 8464
      3249 8443 3228 8460
TIME...MOT...LOC 1901Z 300DEG 14KT 3241 8464

$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 28, 1:20 AM EDT	Special Weather Statement	FFC	Lumpkin, White	25 min
Jun 28, 1:45 AM EDT	Special Weather Statement	FFC	Lumpkin, White	30 min
Jun 28, 2:13 AM EDT	Special Weather Statement	FFC	White	47 min
Jun 28, 3:32 AM EDT	Special Weather Statement	FFC	Towns	28 min
Jun 28, 4:02 AM EDT	Special Weather Statement	FFC	Towns	28 min
Jun 28, 9:38 AM EDT	Special Weather Statement	FFC	Paulding, Polk	22 min
Jun 28, 12:57 PM EDT	Special Weather Statement	FFC	Harris	33 min
Jun 28, 1:43 PM EDT	Special Weather Statement	FFC	Talbot	47 min
Jun 28, 1:50 PM EDT	Special Weather Statement	FFC	Telfair	25 min
Jun 28, 2:20 PM EDT	Special Weather Statement	FFC	Crawford	25 min
Jun 28, 2:32 PM EDT	Special Weather Statement	FFC	Chattahoochee, Muscogee	43 min
Jun 28, 3:12 PM EDT	Special Weather Statement	FFC	Houston	33 min
Jun 28, 3:14 PM EDT	Special Weather Statement	FFC	Emanuel	31 min
Jun 28, 3:35 PM EDT	Special Weather Statement	FFC	Stewart	25 min
Jun 28, 3:41 PM EDT	Special Weather Statement	FFC	Wilcox	34 min
Jun 28, 4:30 PM EDT	Special Weather Statement	FFC	Emanuel, Montgomery, Toombs, Treutlen	45 min
Jun 28, 4:41 PM EDT	Special Weather Statement	FFC	Crisp	49 min
Jun 28, 4:50 PM EDT	Severe Thunderstorm Warning	FFC	Crisp, Sumter	40 min
Jun 28, 4:55 PM EDT	Special Weather Statement	FFC	Pulaski	50 min
Jun 28, 5:01 PM EDT	Special Weather Statement	FFC	Toombs	44 min
Jun 28, 5:45 PM EDT	Special Weather Statement	FFC	Laurens	30 min
Jun 28, 6:01 PM EDT	Severe Thunderstorm Warning	FFC	Laurens	29 min
Jun 28, 6:16 PM EDT	Special Weather Statement	FFC	Wheeler	44 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2011 Every severe thunderstorm warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.